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Finding the Fourth Proportional to 56,765.79, 78,336.81 and 32,906.32

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Solution

The fourth proportional to 56,765.79, 78,336.81 and 32,906.32 is: 45,410.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,765.79 : 78,336.81 = 32,906.32 : x
  2. Step 2: Convert to fraction form
    56,765.79/78,336.81 = 32,906.32/x
  3. Step 3: Cross multiply
    56,765.79x = 78,336.81 × 32,906.32
  4. Step 4: Simplify right side
    56,765.79x = 2,577,775,941.80
  5. Step 5: Solve for x
    x = 2,577,775,941.80/56,765.79
  6. Step 6: Final answer
    x = 45,410.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.